Ive been using various type chronys for as long as theyve been selling them.
I put little faith in them as for any degree of accuracy. Ive found significent
differences from day to day, and especially on as you mentioned sunny days.
Ive even tried putting a box over the unit. I always need to tweek the numbers when
developing elevation charts after actually shooting the distances. If they werent so reasonable,
id simply guess the velocity for the initial chart information.
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